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Evgeniy OZ e-oz

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@petehamilton
petehamilton / metric_apps.md
Last active May 22, 2017 19:14
Useful Metric Dashboard Research Links

Dashboards

Charting

@antirez
antirez / vmlatency.c
Last active September 5, 2018 11:12
VM latency
/* vmlatency.c
*
* Measure max latency of a running process that does not result from
* syscalls. Basically this software should provide an hint about how much
* time the kernel leaves the process without a chance to run.
*
* Copyright (C) 2014 Salvatore Sanfilippo.
* This software is released under the BSD two-clause license.
*
* compile with: cc vmlatency.c -o vmlatency
@mugifly
mugifly / angular-filters.js
Last active September 5, 2018 17:55
Angular JS little filters.
'use strict';
angular.module('foo', [])
.filter('substring', function() {
return function(str, start, end) {
return str.substring(start, end);
};
})
import { Pipe } from 'angular2/core.js';
/**
* Map to Iteratble Pipe
*
* It accepts Objects and [Maps](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Map)
*
* Example:
*
* <div *ngFor="#keyValuePair of someObject | mapToIterable">
@ellemenno
ellemenno / spinner.rb
Created March 11, 2014 16:41
ascii spinner
#!/usr/bin/env ruby
# encoding: UTF-8
@dot_cycle = ['⣾','⣽','⣻','⢿','⡿','⣟','⣯','⣷']
#braille random: 0x2800 - 0x28ff
@z_arrow = ['←','↖','↑','↗','→','↘','↓','↙']
@z_b = ['b','ᓂ','q','ᓄ']
@z_d = ['d','ᓇ','p','ᓀ']
@nodesocket
nodesocket / bootstrap.flatten.css
Last active April 1, 2021 23:37
Below are simple styles to "flatten" bootstrap. I didn't go through every control and widget that bootstrap offers, only what was required for https://commando.io, so your milage may vary.
/* Flatten das boostrap */
.well, .navbar-inner, .popover, .btn, .tooltip, input, select, textarea, pre, .progress, .modal, .add-on, .alert, .table-bordered, .nav>.active>a, .dropdown-menu, .tooltip-inner, .badge, .label, .img-polaroid {
-moz-box-shadow: none !important;
-webkit-box-shadow: none !important;
box-shadow: none !important;
-webkit-border-radius: 0px !important;
-moz-border-radius: 0px !important;
border-radius: 0px !important;
border-collapse: collapse !important;
background-image: none !important;
@miguelmota
miguelmota / buildspec.yml
Last active October 18, 2021 03:23
AWS CodePipeline CodeBuild middleman build deploy to S3 and invalidate cloudfront cache
version: 0.1
phases:
install:
commands:
- apt-get update
- apt-get install nodejs -y
- gem install bundler
- gem install middleman
pre_build:
commands:
@igrigorik
igrigorik / server-timing.md
Last active April 29, 2023 15:04
Mechanism to communicate server timing data to the client (Server Timing)

Navigation and Resource Timing provides timing data for the fetch, but currently there is no interoperable way for the server to communicate own timing information to the client. For example:

  • What steps were taken to generate the resource, and how long each took. Many sites already embed this type of information via HTML comments - e.g. wordpress emits <!--Page generated in X.X seconds.--> , and many sites provide more detailed stats (cache, db, generation) to enable performance debugging.
  • If proxied, where was the time spent - e.g. time to fetch from origin, time to process response, etc.

Instead of relying on arbitrary HTML comments, we can define an HTTP header that can be used to send key-value pairs in a well defined format. Making this data available via a well defined interface would...

  • Allow UA and other developer tools to automatically annotate appropriate timelines.
  • Allow analytics vendors to gather this data for operational analysis.
  • Allows proxies and CDNs to append custom timing d
@jlong
jlong / uri.js
Created April 20, 2012 13:29
URI Parsing with Javascript
var parser = document.createElement('a');
parser.href = "http://example.com:3000/pathname/?search=test#hash";
parser.protocol; // => "http:"
parser.hostname; // => "example.com"
parser.port; // => "3000"
parser.pathname; // => "/pathname/"
parser.search; // => "?search=test"
parser.hash; // => "#hash"
parser.host; // => "example.com:3000"
@PaulKinlan
PaulKinlan / criticalcss-bookmarklet-devtool-snippet.js
Last active April 2, 2024 02:45
CriticalCSS Bookmarklet and Devtool Snippet.js
(function() {
var CSSCriticalPath = function(w, d, opts) {
var opt = opts || {};
var css = {};
var pushCSS = function(r) {
if(!!css[r.selectorText] === false) css[r.selectorText] = {};
var styles = r.style.cssText.split(/;(?![A-Za-z0-9])/);
for(var i = 0; i < styles.length; i++) {
if(!!styles[i] === false) continue;
var pair = styles[i].split(": ");